Offshore Floating Wind Control Patents: Leaders & Trends 2026
- 14 families total, one of the smallest landscapes tracked, with filing peaking at 7 in 2022 and no year since matching it.
- Mooring-line monitoring dominates citations, with EP3943747A1 and its WO2022017834A1 counterpart drawing the heaviest downstream reference in the corpus.
- Waterway engineering claims are thin, just 3 of 14 families touch E02B, leaving seabed- and waterway-condition control methods largely open.
A small, concentrated landscape around mooring and motion control
Floating offshore wind platforms face control problems that fixed-bottom turbines do not: mooring-line integrity, platform motion damping and negative damping mitigation from the interaction of blade pitch control with platform sway. This landscape tracks 14 patent families filed against that specific problem set, filtered to records that name platform motion control, floating turbine control, negative damping mitigation or individual pitch control directly in their claims.
Filing activity is recent and modest: it was near zero through 2017, climbed to a peak of 7 families in 2022, and has not returned to that level since. Coverage sits mostly in Europe, the US and PCT filings, with the technology itself split across wind-motor, marine-vessel and waterway-engineering classifications.
Filing trends and technology composition
Fourteen patent families make this one of the smaller landscapes tracked, concentrated around a single peak year and a narrow set of IPC classes.
Filing activity peaked in 2022 and has not been matched since
Filings ran flat from 2017 before climbing to a peak of 7 families in 2022, the midpoint of the coverage window. Counts since then sit below that peak, which reads as decline rather than sustained growth — though the most recent year is always undercounted because publication trails filing by around 18 months.
Wind-turbine and marine-vessel classes dominate; waterway engineering is thin
All 14 families sit in F03D (wind motors), 9 overlap with B63B (ships and marine vessels), and only 3 touch E02B (hydraulic and waterway engineering) — the class most directly relevant to seabed and mooring-condition interaction, and the one with the least claim density.
Shares are the percentage of the 14 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
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Try EurekaThe records shaping this landscape
Monitoring of mooring lines of a floating wind turbine
Monitoring a mooring line of a floating wind turbine including a mooring system comprises measuring an operational variable of the wind turbine that is influenced by the mooring system, comparing the measured variable with a desired value, and detecting a status of the mooring system based on that comparison.Filed by Siemens Gamesa Renewable Energy, published 2022-01-26; the most-cited record in this dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | EP3943747A1 | Monitoring of mooring lines of a floating wind turbine | 14 |
| 2 | US20220128033A1 | Shallow draft, wide-base floating wind turbine without nacelle | 12 |
| 3 | WO2022017834A1 | Monitoring of mooring lines of a floating wind turbine | 8 |
| 4 | US20240410333A1 | Method of damping motion of a floating wind turbine | 2 |
Ranked by citation count within the searched dataset; older records are favoured by this measure.
Publication numbers are shown where the record carries one (4 of 4 rows); clicking a row searches Eureka by that number.
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A small, flat-to-declining family count with heavy citation concentration on a handful of records tells a specific story about where this field stands.
Growth has not resumed since the 2022 peak
Filings rose from zero in 2017 to a peak of 7 families in 2022, then fell back. With the most recent year always undercounted due to publication lag, it is too early to call this a permanent decline, but nothing in the visible data shows a return to peak-year activity yet.
One mooring-monitoring family anchors the field's prior art
EP3943747A1 and its PCT counterpart WO2022017834A1 lead citation counts by a wide margin over the next-ranked records, meaning most subsequent filers in this space have had to draft around, or build on, that specific measure-compare-detect method.
Waterway and seabed-condition control is the least-claimed branch
F03D wind-motor claims cover all 14 families and B63B marine-vessel claims cover 9, but only 3 families extend into E02B hydraulic and waterway engineering — the class most relevant to seabed anchoring and waterway-condition-responsive control.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to offshore floating wind control system, with the prior art for and against each one.
Who is filing, and how concentrated the field is
With 14 families total, this is not a landscape with a deep incumbent bench — a small number of assignees account for most of the citation weight, and momentum has flattened across all of them in the most recent tracked year.
Siemens Gamesa anchors the mooring-monitoring claim
EP3943747A1 and its PCT counterpart WO2022017834A1 are the two most-cited records in the dataset, both centred on detecting mooring-system status from a measured turbine operational variable.
Vestas and hull-geometry alternatives sit close behind
Vestas Wind Systems appears among the tracked assignees, and the second most-cited record in the corpus, US20220128033A1, takes a structural rather than sensing-based approach to platform stability.
Recent-year activity has flattened across the board
Every assignee tracked for recent-year momentum, including Siemens Gamesa and Vestas, shows zero filings in the latest year. That is consistent with the overall filing trend rather than a single company pulling back.
| Assignee | Recent year | YoY |
|---|---|---|
| Vestas Wind Systems A/S | 0 | — |
| Northeastern University (US) | 0 | — |
| Siemens Gamesa Renewable Energy | 0 | — |
| VESTAS WIND SYSTEMS AS (100 00) | 0 | — |
Where to take this analysis
This landscape is small enough that a single well-drafted filing can shift the balance of claim coverage. The next step is testing a specific claim or design against the records that already dominate citations.
Check freedom to operate against the top-cited mooring claim
EP3943747A1's measure-compare-detect method is the densest piece of prior art in this space; any mooring-condition-monitoring approach should be checked against it directly.
Run a freedom-to-operate check in EurekaScope a filing in the under-claimed waterway-engineering branch
E02B coverage sits at just 3 of 14 families, leaving seabed- and waterway-condition-responsive control methods comparatively open.
Explore white space in EurekaCommon questions on offshore floating wind control patents
This dataset counts 14 patent families across the 2015-2026 coverage window, covering mooring-line monitoring, platform motion damping and individual pitch control. That is a small landscape by patent-analytics standards, meaning individual filings carry more relative weight than they would in a crowded field. Filing peaked at 7 families in 2022 and has not exceeded that level since.
Siemens Gamesa Renewable Energy and Vestas Wind Systems both appear among the assignees, with Siemens Gamesa holding the most-cited record in the corpus, EP3943747A1, on mooring-line monitoring. Recent-year momentum across the tracked assignees is flat at zero for the latest year, consistent with the overall filing trend rather than any one company's slowdown. With only 14 families total, the field has a short list of active filers rather than a long incumbent roster.
Negative damping is an instability that arises when a floating wind turbine's control system and its platform motion interact destructively, amplifying rather than damping oscillation — a known hazard specific to floating (as opposed to fixed-bottom) turbines. It matters for patent strategy because the search terms show it is an explicit claim category, and individual pitch control is one documented method for mitigating it. The relatively small number of records addressing it directly suggests the claim space is not yet saturated.
EP3943747A1, assigned to Siemens Gamesa and published in 2022, claims a method of detecting mooring-system status by measuring a turbine operational variable influenced by the mooring system and comparing it to a desired value. It is the most-cited record in this dataset at 14 citations, indicating broad downstream relevance. It constrains approaches that infer mooring condition from turbine behaviour, but does not necessarily block designs that sense the mooring line directly rather than inferring its state indirectly.
The E02B hydraulic and waterway engineering class holds only 3 of the 14 families, the thinnest of the three IPC classes present, despite sitting adjacent to the heavily-cited mooring-monitoring claims. That gap points to control methods coordinating mooring tension or platform position with sensed waterway or seabed conditions as an under-claimed area. Filing is also geographically concentrated in Europe, the US and PCT routes, with only a single Spanish filing, suggesting jurisdictional openings alongside the technical one.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.